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Finding the Third Proportional to 9,747 and 20,791

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Solution

The third proportional to 9,747 and 20,791 is: 44,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,747 : 20,791 = 20,791 : x
  2. Step 2: Convert to fraction form
    9,747/20,791 = 20,791/x
  3. Step 3: Cross multiply
    9,747x = 20,791 × 20,791
  4. Step 4: Simplify right side
    9,747x = 432,265,681
  5. Step 5: Solve for x
    x = 432,265,681/9,747
  6. Step 6: Final answer
    x = 44,348.59

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.